C34.82
BillableMalignant neoplasm of overlapping sites of left bronchus and lung
HCC Category Mapping
V28HCC 20 — Lung and Other Severe Cancers
0.000V24HCC 9 — Lung and Other Severe Cancers
0.973ESRDHCC 9 — Lung and Other Severe Cancers
0.000RxHCCHCC 20 — Cancer, Liver and Intrahepatic Bile Duct
0.000What This Code Means
Cancer that involves multiple areas of the left lung and/or left bronchus.
Coding Tips
- •Confirm documentation specifies left-sided overlapping sites before assigning this code
- •Note the specific lobes or regions affected to provide complete clinical information
Clinical Significance
Left-sided overlapping lung cancer indicates locally advanced disease crossing anatomical boundaries within the left lung. Since the left lung has only two lobes (upper and lower), overlapping typically means translobar disease crossing the oblique fissure. This often necessitates left pneumonectomy, which carries significant morbidity.
Documentation Requirements
- ✓Imaging showing tumor crossing the oblique fissure or involving multiple left lung regions
- ✓Pathology confirming single primary neoplasm
- ✓Documentation of which left-sided structures are involved
- ✓TNM staging and pulmonary function assessment for pneumonectomy candidacy
- ✓Molecular markers and treatment plan
Commonly Confused Codes
Code Hierarchy
└C34Malignant neoplasm of bronchus and lung└C34.8Malignant neoplasm of overlapping sites of bronchus and lung└C34.82Malignant neoplasm of overlapping sites of left bronchus and lung
└C34.82Malignant neoplasm of overlapping sites of left bronchus and lung